The material selection platform
Cosmetics Ingredients
The material selection platform
Cosmetics Ingredients
Online Course

Reducing Environmental Stress Cracking in Plastic Parts

On-Demand Course

Recorded on Oct 19, 2016

Reduce environmental stress cracking (ESC) of your plastic parts by better predicting failure occurrence and implementing adequate prevention measures.

After reviewing failure modes & how to predict occurrence, pragmatic prevention strategies based on polymer selection, design & environment will be discussed using real life case studies.

Read the full Course Outline

Jeffrey A. Jansen Presented By:
Jeffrey A. Jansen

Length: 90 min

Course Type: Methodology
Level: Intermediate

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Package includes:

.wmv Courses Recording, Presentation Slides & Transcript of Q&A session

Why should you view this course?

Around 25% of plastic part failures in the industry are related to Environmental stress cracking (ESC). Practically, it’s the leading cause of failure. ESC is often due to the combination of multiple factors (material, design, processing, in-use). You choose a wrong factor to focus on & you will find your entire time wasted! Reduce the occurrence of Environmental Stress Cracking in your plastic parts by joining Jeffrey (performed >1470 failure investigations). He will help you to:

  1. Get a grip on ESC by understanding its underlying mechanisms (ductile overload, creep model) & factors affecting performance (materials, design..)
  2. Better prevent ESC with practical considerations derived from Jeff Jansen’s own experience (polymers, chemicals & situations with highest risk)
  3. Assess confidently whether your material is prone to ESC by using most suited test methods (ASTM D543, ASTM D1693..)

Who should view this course?

Design Engineers, Failure Analysts, Quality Engineers at Material Suppliers/ Plastic parts manufacturers who need to better understand ESC analysis to gain competitive advantage

Course Outline

The following sections will be covered during this session:

  1. Introduction to ESC (5 min)
    • Plastics Failure Mechanism
    • ESC Failure Mechanism

  2. Why do Plastic parts crack? (5 min)
    • Ductile Overload Cracking Model
    • Ductile to Brittle Transition

  3. Elements of prediction of ESC (10 min)
    • Some generalizations regarding families of plastics & the environment

  4. Practical considerations to reduce ESC occurrence (10 min)

  5. ESCR test methods (10 min)
    • ASTM D1693, critical strain, fracture mechanics & others….

  6. Similar failures to ESC (5 min)
    • Crack Tip Dissolution
    • Solvation/Plasticization
    • Dissolution

  7. Practical Case Studies on Automotive, Hardware & Medical plastic parts (15 min)
    • Reviewing Failure mode, cause & suggesting recommendations

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Members Reviews

Good to see what other techniques i should be routinely doing in failure analysis to confirm ESC.

Abigail W. , from Enersys

I now have a better understanding of ESC & can recognise it when i see it.

Sara N. , from LA SEDA DE BCN

Excellent course! Gave an in depth analysis of ESC and the methods for testing for ESC.

Sam C. , from Applied Medical

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